diff --git a/src/Potter/Throwable/ThrowableInterface.php b/src/Potter/Throwable/ThrowableInterface.php
index 651b161..58d5d5e 100644
--- a/src/Potter/Throwable/ThrowableInterface.php
+++ b/src/Potter/Throwable/ThrowableInterface.php
@@ -10,7 +10,7 @@ use \Potter\Stringable\StringableInterface;
 interface ThrowableInterface extends StringableInterface
 {
     public function getMessage(): string;
-    public function getCode(): int;
+    public function getCode();
     public function getFile(): string;
     public function getLine(): int;
     public function getTrace(): array;